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Ethan Siegel: Failure to replicate a dark matter experiment is “an incredible success” for the scientific method

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That’s the outlier DAMA/LIBRA experiment:

For decades, now, scientists have been searching valiantly for the elusive particle that might make up some or even all of the dark matter. While the astrophysical evidence supporting the existence of dark matter is overwhelming, every experiment designed and built to directly detect whatever particle might be responsible for dark matter has come up empty.

Every experiment, that is, except one: the DAMA/LIBRA experiment. While other experiments that are far more sensitive — including SuperCDMS, XENON, Edelweiss, LUX, and many others — have only detected negative results down to extreme precisions, DAMA/LIBRA has continuously observed a significant signal for about 20 years. At last, the critical test has been performed: a completely independent team, ANAIS, has carried out an identical experiment to DAMA/LIBRA, replicating the study and testing its validity. With three complete years of data collected, ANAIS has ruled out the DAMA/LIBRA results in a model-independent way to better than 99% confidence. The world’s most controversial dark matter experiment has been busted, and it’s an incredible success for the scientific method.

Ethan Siegel, “Goodbye, DAMA/LIBRA: World’s Most Controversial Dark Matter Experiment Fails Replication Test” at Forbes

Siegel offers an inside look at the details. While the finding is doubtless a success for the scientific method, it must be frustrating for those physicists who need dark matter to exist in order to make cosmology understandable — but can’t find any.

See also: Discover: Even the best dark matter theories are crumbling

Researcher: The search for dark matter has become a “quagmire of confirmation bias” So many research areas in science today are hitting hard barriers that it is reasonable to think that we are missing something.

Physicists devise test to find out if dark matter really exists

Largest particle detector draws a blank on dark matter

What if dark matter just doesn’t stick to the rules?

A proposed dark matter solution makes gravity an illusion

and

Proposed dark matter solution: “Gravity is not a fundamental governance of our universe, but a reaction to the makeup of a given environment.”

One Reply to “Ethan Siegel: Failure to replicate a dark matter experiment is “an incredible success” for the scientific method

  1. 1
    Pearlman says:

    No Dark matter? No dark enegy? SPIRAL, already over 150T:1 more reasonable than competing SCM-LCDM is the last cosmological model of the two standing. Pearlman SPIRAL on the Keating Big Bang Checklist: https://www.academia.edu/44650180/Pearlman_SPIRAL_on_the_Keating_Big_Bang_Checklist via @academia

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